Model:ATXMEGA64B3-MUR BRAND:Microchip description:IC MCU 8/16BIT 64KB FLASH 64QFN pack:tape(TR),Shear zone(CT),Digi-Reel? SERIES:AVR? XMEGA? B3 status:Discontinued Core processor:AVR Core specifications:8/16-位 Speed:32MHz Peripherals:Undervoltage detection/reset,DMA,LCD,POR,PWM,WDT I/O number:36 Program storage capacity:64KB(32K x 16) Program memory type:Flash memory EEPROM capacity:2K x 8 RAM size:4K x 8 Voltage - powered by:1.6V ~ 3.6V Data converter:A/D 8x12b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:64-VFQFN Exposed pad Supplier device packaging:64-QFN(9x9)